Results 11 to 20 of about 1,104,641 (99)

Logging identification of complex lithology of the Lower Jurassic Da'anzhai Member in the eastern slope of the western Sichuan Depression

Unconventional Resources, 2023
In recent years, with the in-depth development of oil and gas exploration in the eastern slope of the western Sichuan Depression, breakthroughs have been made in the research on high-quality gas reservoirs in the Da'anzhai Member of the Ziliujing ...
Mengyuan Zhang, Runcheng Xie, Shuai Yin, Meizhou Deng, Jun Chen, Shaoke Feng, Ziwei Luo, Jian Chen   +7 more
doaj   +3 more sources

Identification of fractures in tight-oil reservoirs: a case study of the Da'anzhai member in the central Sichuan Basin, SW China. [PDF]

Sci Rep, 2021
The Da'anzhai Member of the Jurassic Ziliujing formation in central Sichuan is a typical tight-oil reservoir with porosity and permeability less than 2% and 0.1 × 10–3 μm2, respectively.
Tian J, Liu H, Wang L, Sima L, Liu S, Liu X.   +5 more
europepmc   +5 more sources

Evaluating Shale Gas Sweet Spots of the Jurassic Da'anzhai Member in the Yuanba Area, Sichuan Basin

Energy Exploration & Exploitation, 2023
Terrestrial shale strata generally has frequent and strong heterogeneity characteristics, thus affecting shale gas enrichment and target selection. In this study, samples from the Da’anzhai Member of Well A in Yuanba area have performed a series of ...
Qianwen Li, Zhongbao Liu, Feiran Chen, Guangxiang Liu, Dianwei Zhang, Peng Li, Pengwei Wang   +6 more
doaj   +3 more sources

Controlling factors of Jurassic Da'anzhai Member tight oil accumulation and high production in central Sichuan Basin, SW China

Petroleum Exploration and Development, 2015
Based on observation of cores and casting thin sections, reservoir fluorescence, hydrocarbon geochemical characteristics and oil production test data, the factors controlling the tight oil accumulation and high production in the Da'anzhai Member in the ...
Shijia CHEN, Huanxu ZHANG, Jungang LU, Yueming YANG, Chaowei LIU, Li WANG, Xianli ZOU, Jiajing YANG, Haiping TANG, Yitong YAO, Youlin HUANG, Shuai NI, Yingying CHEN   +12 more
doaj   +3 more sources

Control factors of high and stable production of Jurassic Da'anzhai Member tight oil in central Sichuan Basin, SW China

Petroleum Exploration and Development, 2017
: By systematically analyzing the basic geological characteristics of tight oil in Jurassic Da'anzhai Member in the middle of Sichuan Basin (Central Sichuan area) and combining with a large number of exploration and development data, we examine the main ...
Guang YANG, Dong HUANG, Pinghui HUANG, Weipeng YAN, Tianquan YANG, Hongming DAI, Jianping LIN   +6 more
doaj   +3 more sources

Differential Enrichment of Organic Matter in the Da'anzhai Member of the Sichuan Basin: A Response to the Toarcian Oceanic Anoxic Event. [PDF]

ACS Omega
The Lower Jurassic Da'anzhai Member in the Sichuan Basin preserves a rare continental archive of the Toarcian Oceanic Anoxic Event (T-OAE). However, the mechanisms governing differential organic matter (OM) enrichment in its lacustrine shale successions remain debated.
Yang X, Yang F, Zhang S, Qiu R, Tang Y, Tang S.   +5 more
europepmc   +5 more sources

Multiproxy Geochemical Reconstruction of Paleoenvironment and Its Control on Fine-Grained Sedimentation in the Da'anzhai Member of the Jurassic System, Sichuan Basin. [PDF]

ACS Omega
The origin of fine-grained sedimentary rocks in the Da'anzhai Member of the Lower Jurassic Ziliujing Formation in the Sichuan Basin, as well as their paleoenvironmental implications, remains a subject of ongoing debate. Studies on the sedimentary patterns of fine-grained components and quantitative analysis of paleoclimate remain limited.
Sun Y, Zeng D, Guo Y, Wang X, Kang J, Zhang R, Zhang B.   +6 more
europepmc   +4 more sources

Diagenesis and Its Impact on the Reservoir Quality of Continental Shales: A Case Study of the Lower Jurassic Da’anzhai Member of the Ziliujing Formation in the Sichuan Basin, China

Geofluids, 2022
The Jurassic continental shale oil (gas) is a favorable unconventional resource in the Sichuan Basin of China. In this paper, analysis methods such as core and outcrops observation, thin section identification, scanning electron microscopy (SEM), and X ...
Yixiu Zhu, Zezhou Li, Lianbo Zeng, Zhenyu Liu, Xinyao Wang   +4 more
doaj   +2 more sources

Comprehensive logging identification method of shell limestone fractures in the Lower Jurassic Da'anzhai Member in the Dongpo area of the Western Sichuan Depression

Unconventional Resources, 2022
Shell limestone tight reservoirs are developed in the Lower Jurassic Da'anzhai Member of the Sichuan Basin. Fractures are important storage spaces and seepage channels in shell limestone tight oil reservoirs and are key factors for high oil and gas ...
Ziwei Luo, Runcheng Xie, Wenli Cai, Yongfei Wang, Meizhou Deng, Ying Feng   +5 more
doaj   +2 more sources

Fracture characteristics and logging identification of lacustrine limestone-shale reservoirs in Da′anzhai Member, Gongshanmiao Oilfield, Sichuan Basin

地质科技通报, 2022
Lacustrine limestone and shale reservoirs are both developed in the Da′anzhai Member of Gongshanmiao Oilfield, Sichuan Basin. Whether fractures are developed or not is the key to the reservoirs in the Da'anzhai Member.
Feng Wu, Yingying Luo, Yuhan Li, Zongheng Yang, Hongqian Zhang, Jianfeng Liu, Xiangchao Shi   +6 more
doaj   +2 more sources